5′ 2″ diam., 16 rect spokes, rectangular inner rim, 4¼″ apparent tread.
Hub 14½″ face dia., 2⅜″ out from the tyre, pin between at 10″.

Casting: 49.2 mm tread dia., 42.0 mm i/d., hub 1.1 mm out from the tyre, pin at 7.9 mm.

Casting prices and stock . GWR loco sets, price list

Scan of a casting in a set for a GWR 0-6-0 Dean Goods class